[MPlayer-users] Disable filters?

[Neal Krawetz]

On Fri Oct 21 00:08:58 CEST 2011, Ron Johnson wrote:
>On 10/20/2011 04:52 PM, Neal Krawetz wrote:
>[snip]
>>
>> I'm using the default mplayer with Ubuntu 10.04 (Lucid Lynx):
>>    MPlayer SVN-r1.0~rc3+svn20090426-4.4.3 (C) 2000-2009 MPlayer Team
>
>The ppa:motumedia/mplayer-daily PPA will give you the latest and 
>greatest mplayer.
>
>That:
>a) is required for best assistance, and
>b) might solve your problem...

I just tried mplayer from 2011-10-20.
The post-processing color scaling has moved from RGB to YUV. The YUV
spectrum still has clear and obvious gaps where scaling is being performed.
The gaps are caused by floating point rounding.  That's right: there are
some colors that are no longer possible to render due to floating point
rounding applied by some post-processing that mplayer is performing.

Back to my original question:
How do I DISABLE ALL POST-PROCESSING for color corrections in mplayer?
I just want to see the unmodified colors that are stored in the movie and
not the colors after any auto-gamma correction, auto-leveling, normalization,
histogramming, color profile application, or whatever it is that mplayer
is doing after the basic rendering.

The post-processing that I am seeing appears to be codec independent.

As an aside: I don't mind hacking the code if there isn't a command-line
option to disable all post-processing.  Just tell me what to diable and
where it is.

					-Neal